Guy Carpenter is the world's leading risk and reinsurance specialist, creating and executing reinsurance and risk management solutions for clients worldwide. It provides risk assessment analytics, actuarial services, highly specialized product knowledge, and trading relationships with reinsurance markets throughout the world. Client services also include contract and claims management and fiduciary accounting. Run-off services and other reinsurance and insurance administration solutions are offered through Guy Carpenter subsidiaries on a fee basis.

Mercer Human Resource Consulting is a leading global provider of a broad range of human resource (HR) advice and solutions. The company also provides related financial advice, products, and services in the retirement and health and benefits areas. Mercer works with clients to design, implement, and administer HR solutions that improve the effectiveness and efficiency of an organization's HR programs and policies. Its consulting units help clients address their employee health, welfare, and retirement needs and optimize workforce performance while managing HR program costs. Mercer HR Services provides outsourced HR administration, technology, and business process solutions. Mercer Global Investments is a global asset management business that provides multi-manager investment solutions.

The Oliver Wyman Group delivers advisory services to clients through three operating units, each of which is a leader in its field. Oliver Wyman is a top-tier global management consulting firm that combines deep industry knowledge with specialized expertise in strategy, operations, risk management, organizational transformation, and leadership development. Lippincott helps clients create, develop, and manage their corporate branding, identity, and image. NERA Economic Consulting advises corporations, law firms, and government entities on the economics of competition, regulation, public policy, finance, and litigation.